公开(公告)号：US20130272032A1

公开(公告)日：2013-10-17

申请号：US13907088

申请日：2013-05-31

Applicant: SMA Solar Technology AG

Inventor： Jens-Uwe Mueller ,  Torsten Leifert ,  Sebastian Heinze ,  Mario Willenberg

IPC: H02M3/335

CPC classification number: H02M3/33569 ,  H02J1/108 ,  H02J3/383 ,  H02M3/3387 ,  Y02B70/1433 ,  Y02E10/563

Abstract: The disclosure relates to a method for operating a DC/DC voltage converter comprising a first switching bridge with at least two first switches coupled to an input of the DC/DC voltage converter, a second switching bridge with at least two second switches coupled to an output of the DC/DC voltage converter, a transformer and at least one capacitor, wherein the first switching bridge is connected to the second switching bridge via the transformer. The first switches are switched such that a resonant circuit formed by the transformer and the at least one capacitor is operated in resonance, and the second switches are switched at the same clock frequency with a phase shift compared to the first switches, such that the second switches are switched prior to the first switches. The disclosure also relates to a DC/DC voltage converter comprising a control circuit for the first and second switches which is configured to carry out the method, and to a backup power system including such a DC/DC voltage converter.

Abstract translation: 本公开涉及一种用于操作DC / DC电压转换器的方法，其包括具有耦合到DC / DC电压转换器的输入的至少两个第一开关的第一开关桥，具有至少两个第二开关的第二开关桥， DC / DC电压转换器的输出，变压器和至少一个电容器，其中第一开关桥经由变压器连接到第二开关桥。 切换第一开关使得由变压器和至少一个电容器形成的谐振电路以共振方式工作，并且与第一开关相比，以相移相同的时钟频率切换第二开关，使得第二开关 开关在第一个开关之前切换。 本公开还涉及包括用于执行该方法的第一和第二开关的控制电路以及包括这种DC / DC电压转换器的备用电力系统的DC / DC电压转换器。